B4R Question Mqtt Broker on ESP8266 (IDE B4R not working) (Arduino IDE ok)

[XorAndOr]

Hi everyone
I've been trying to get it to work for days a mqtt broker on an esp8266 with #if C code and calling it with RunNative in B4R.
If I program the esp8266 with Arduino code everything works. I tried three different brokers with C code for arduino in B4R
I also created a b4r library b4xlib which I included both the connection station and the broker.
But after programming with B4R it doesn't work.
Log client B4J

(ConnectException) java.net.ConnectException: Connection timed out: no further information

What I don't understand is why if I program it with arduino everything works,
while with B4R with arduino code in C and RunNative it doesn't work.
p.s. (I know I should be using Raspberry for this)

I found 2 forum threads about it
https://www.b4x.com/android/forum/threads/mqtt-broker-on-esp8266.89578/#content

https://www.b4x.com/android/forum/threads/porting-arduino-code-to-b4r.92985/#content

Thank you for help

I attach the files of the tests I did

 

[candide]

can you check if this wrapper on a MQTTBroker can help you ? first check with basic project, without callbacks.

this wrapper is based on : https://github.com/terrorsl/sMQTTBroker
this MQTTBroker is for esp8266 and esp32

 

[XorAndOr]

Yes, it works!!
Thank you very much @candide for your interest and help.
I tried the 2 B4R projects, (test_rsMQTTBroker_basic) it works, now the client connects.
I have to do more tests to send the commands, but it's already something great that you made it work thank you very much.
The other project (test_rsMQTTBroker) connects to the router and then the esp8266 goes into error and restarts.
p.s. I had already tried this library but with RunNative and it didn't work.
thanks

 

[candide]

after more tests done, this is the new version with some fix, i had issues with "std::string" strings.

now we have only one callback in case of connection lost, to make an action to recover the link and all others events are now only traces .
you can add or remove traces.

i tested transfer of message, it is working with simple topic ( i don't know if we have a limitation on the number of chars or on special chars)

 

[XorAndOr]

Hi @candide
Incredible!
it works perfectly, now on the broker's log I see the clients connecting and sending data.
I use it to send short home automation messages (not chats)
Thank you very much for the effort to make a library.
p.s. I don't see the donation button on your profile

 

[XorAndOr]

now we have only one callback in case of connection lost, to make an action to recover the link and all others events are now only traces .
you can add or remove traces.

hi candide,
I would like to ask you how do I add the event in B4R

Sub OnPublish(ClientID As ULong, Topic() As Byte, Payload() As Byte)
    Log("New Publish, ClientID: ",ClientID," Topic: ",Topic, " Payload: ", Payload)
End Sub

or replace it instead of OnLostConnection
I would like to make the esp8266 do some operations when a command arrives, as well as send a msg to the client
Thank you

 

[candide]

last version with all callbacks available.

 

[XorAndOr]

last version with all callbacks available.

Perfect
Thank You very much